/*
 * Copyright (c) 2012 Robert Burrell Donkin robertburrelldonkin.name
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 * and associated documentation files (the "Software"), to deal in the Software without restriction, 
 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software 
 * is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or 
 * substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
package name.robertburrelldonkin.alfie;

public class Message<Subject> {

	public enum Event{COMMUNICATION, STOP, FATAL}
	
	private final Subject subject;	
	private final Event event;
	private final Throwable cause;
	
	public Message(Throwable cause) {
		this(null, Event.FATAL, cause);
	}
	
	public Message() {
		this(null, Event.STOP, null);
	}
	
	public Message(Subject subject) {
		this(subject, Event.COMMUNICATION, null);
	}
	
	private Message(Subject subject, Event event, final Throwable cause) {
		super();
		this.subject = subject;
		this.event = event;
		this.cause = cause;
	}

	public Throwable getCause() {
		return cause;
	}

	public Subject getSubject() {
		return subject;
	}

	public Event getEvent() {
		return event;
	}

	@Override
	public String toString() {
		return "Message [event=" + event + ", subject=" + subject + "]";
	}
}
